static gboolean cogl_create_context () { GLubyte default_texture_data[] = { 0xff, 0xff, 0xff, 0x0 }; gulong enable_flags = 0; CoglDrawBufferState *draw_buffer; if (_context != NULL) return FALSE; /* Allocate context memory */ _context = (CoglContext*) g_malloc (sizeof (CoglContext)); /* Init default values */ _context->feature_flags = 0; _context->features_cached = FALSE; _context->enable_flags = 0; _context->color_alpha = 0; _context->enable_backface_culling = FALSE; _context->indirect = gl_is_indirect; _context->default_material = cogl_material_new (); _context->source_material = NULL; _context->default_gl_texture_2d_tex = COGL_INVALID_HANDLE; _context->default_gl_texture_rect_tex = COGL_INVALID_HANDLE; _context->journal = g_array_new (FALSE, FALSE, sizeof (CoglJournalEntry)); _context->logged_vertices = g_array_new (FALSE, FALSE, sizeof (GLfloat)); _context->journal_vbo = 0; _context->journal_vbo_len = 0; _context->current_material = NULL; _context->current_material_flags = 0; memset (&_context->current_material_flush_options, 0, sizeof (CoglMaterialFlushOptions)); _context->current_layers = g_array_new (FALSE, FALSE, sizeof (CoglLayerInfo)); _context->n_texcoord_arrays_enabled = 0; draw_buffer = g_slice_new0 (CoglDrawBufferState); draw_buffer->target = COGL_WINDOW_BUFFER; draw_buffer->offscreen = COGL_INVALID_HANDLE; _context->draw_buffer_stack = g_slist_prepend (NULL, draw_buffer); _context->path_nodes = g_array_new (FALSE, FALSE, sizeof (CoglPathNode)); _context->last_path = 0; _context->stencil_material = cogl_material_new (); _context->in_begin_gl_block = FALSE; _context->viewport_width = 0; _context->viewport_height = 0; _context->pf_glGenRenderbuffersEXT = NULL; _context->pf_glBindRenderbufferEXT = NULL; _context->pf_glRenderbufferStorageEXT = NULL; _context->pf_glGenFramebuffersEXT = NULL; _context->pf_glBindFramebufferEXT = NULL; _context->pf_glFramebufferTexture2DEXT = NULL; _context->pf_glFramebufferRenderbufferEXT = NULL; _context->pf_glCheckFramebufferStatusEXT = NULL; _context->pf_glDeleteFramebuffersEXT = NULL; _context->pf_glBlitFramebufferEXT = NULL; _context->pf_glRenderbufferStorageMultisampleEXT = NULL; _context->pf_glCreateProgramObjectARB = NULL; _context->pf_glCreateShaderObjectARB = NULL; _context->pf_glShaderSourceARB = NULL; _context->pf_glCompileShaderARB = NULL; _context->pf_glAttachObjectARB = NULL; _context->pf_glLinkProgramARB = NULL; _context->pf_glUseProgramObjectARB = NULL; _context->pf_glGetUniformLocationARB = NULL; _context->pf_glDeleteObjectARB = NULL; _context->pf_glGetInfoLogARB = NULL; _context->pf_glGetObjectParameterivARB = NULL; _context->pf_glUniform1fARB = NULL; _context->pf_glUniform2fARB = NULL; _context->pf_glUniform3fARB = NULL; _context->pf_glUniform4fARB = NULL; _context->pf_glUniform1fvARB = NULL; _context->pf_glUniform2fvARB = NULL; _context->pf_glUniform3fvARB = NULL; _context->pf_glUniform4fvARB = NULL; _context->pf_glUniform1iARB = NULL; _context->pf_glUniform2iARB = NULL; _context->pf_glUniform3iARB = NULL; _context->pf_glUniform4iARB = NULL; _context->pf_glUniform1ivARB = NULL; _context->pf_glUniform2ivARB = NULL; _context->pf_glUniform3ivARB = NULL; _context->pf_glUniform4ivARB = NULL; _context->pf_glUniformMatrix2fvARB = NULL; _context->pf_glUniformMatrix3fvARB = NULL; _context->pf_glUniformMatrix4fvARB = NULL; _context->pf_glDrawRangeElements = NULL; _context->pf_glActiveTexture = NULL; _context->pf_glClientActiveTexture = NULL; _context->pf_glBlendFuncSeparate = NULL; _context->pf_glBlendEquationSeparate = NULL; /* Initialise the clip stack */ _cogl_clip_stack_state_init (); /* Initialise matrix stack */ _cogl_current_matrix_state_init (); /* Create default textures used for fall backs */ _context->default_gl_texture_2d_tex = cogl_texture_new_from_data (1, /* width */ 1, /* height */ COGL_TEXTURE_NO_SLICING, COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* data format */ /* internal format */ COGL_PIXEL_FORMAT_RGBA_8888_PRE, 0, /* auto calc row stride */ default_texture_data); _context->default_gl_texture_rect_tex = cogl_texture_new_from_data (1, /* width */ 1, /* height */ COGL_TEXTURE_NO_SLICING, COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* data format */ /* internal format */ COGL_PIXEL_FORMAT_RGBA_8888_PRE, 0, /* auto calc row stride */ default_texture_data); cogl_set_source (_context->default_material); _cogl_material_flush_gl_state (_context->source_material, NULL); enable_flags = _cogl_material_get_cogl_enable_flags (_context->source_material); cogl_enable (enable_flags); _context->quad_indices_byte = COGL_INVALID_HANDLE; _context->quad_indices_short = COGL_INVALID_HANDLE; _context->quad_indices_short_len = 0; return TRUE; }
static gboolean cogl_create_context (void) { GLubyte default_texture_data[] = { 0xff, 0xff, 0xff, 0x0 }; unsigned long enable_flags = 0; CoglHandle window_buffer; if (_context != NULL) return FALSE; /* Allocate context memory */ _context = (CoglContext*) g_malloc (sizeof (CoglContext)); /* Init default values */ _context->feature_flags = 0; _context->features_cached = FALSE; /* Initialise the driver specific state */ /* TODO: combine these two into one function */ _cogl_create_context_driver (_context); _cogl_features_init (); _cogl_material_init_default_material (); _context->enable_flags = 0; _context->color_alpha = 0; _context->enable_backface_culling = FALSE; _context->flushed_front_winding = COGL_FRONT_WINDING_COUNTER_CLOCKWISE; _context->indirect = gl_is_indirect; cogl_matrix_init_identity (&_context->identity_matrix); cogl_matrix_init_identity (&_context->y_flip_matrix); cogl_matrix_scale (&_context->y_flip_matrix, 1, -1, 1); _context->flushed_matrix_mode = COGL_MATRIX_MODELVIEW; _context->texture_units = NULL; _context->simple_material = cogl_material_new (); _context->source_material = NULL; _context->default_gl_texture_2d_tex = COGL_INVALID_HANDLE; _context->default_gl_texture_rect_tex = COGL_INVALID_HANDLE; _context->journal = g_array_new (FALSE, FALSE, sizeof (CoglJournalEntry)); _context->logged_vertices = g_array_new (FALSE, FALSE, sizeof (GLfloat)); _context->current_material = NULL; _context->current_material_flags = 0; memset (&_context->current_material_flush_options, 0, sizeof (CoglMaterialFlushOptions)); _context->current_layers = g_array_new (FALSE, FALSE, sizeof (CoglLayerInfo)); _context->n_texcoord_arrays_enabled = 0; _context->framebuffer_stack = _cogl_create_framebuffer_stack (); window_buffer = _cogl_onscreen_new (); cogl_set_framebuffer (window_buffer); /* XXX: the deprecated _cogl_set_draw_buffer API expects to * find the window buffer here... */ _context->window_buffer = window_buffer; _context->dirty_bound_framebuffer = TRUE; _context->dirty_gl_viewport = TRUE; _context->path_nodes = g_array_new (FALSE, FALSE, sizeof (CoglPathNode)); _context->last_path = 0; _context->stencil_material = cogl_material_new (); _context->in_begin_gl_block = FALSE; _context->quad_indices_byte = COGL_INVALID_HANDLE; _context->quad_indices_short = COGL_INVALID_HANDLE; _context->quad_indices_short_len = 0; _context->texture_download_material = COGL_INVALID_HANDLE; /* Create default textures used for fall backs */ _context->default_gl_texture_2d_tex = cogl_texture_new_from_data (1, /* width */ 1, /* height */ COGL_TEXTURE_NO_SLICING, COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* data format */ /* internal format */ COGL_PIXEL_FORMAT_RGBA_8888_PRE, 0, /* auto calc row stride */ default_texture_data); _context->default_gl_texture_rect_tex = cogl_texture_new_from_data (1, /* width */ 1, /* height */ COGL_TEXTURE_NO_SLICING, COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* data format */ /* internal format */ COGL_PIXEL_FORMAT_RGBA_8888_PRE, 0, /* auto calc row stride */ default_texture_data); cogl_set_source (_context->simple_material); _cogl_material_flush_gl_state (_context->source_material, NULL); enable_flags = _cogl_material_get_cogl_enable_flags (_context->source_material); cogl_enable (enable_flags); _cogl_flush_face_winding (); _context->atlas = NULL; _context->atlas_texture = COGL_INVALID_HANDLE; _context->current_pbo = NULL; _context->max_texture_units = -1; return TRUE; }